I have an Aeroworks Extra profile with a Moki 2.10. I am having trouble setting the needles. I get the low end set, then when I throttle up, it peaks at about 7200 then drops back to 6500. Im running 5% nitro and a Zinger Pro 20/8. I am going to put a Cline REg on it, but it should still start up and run without it. Any suggestions?

BTW I am using the standard tubing inside the tank and larger tubing to the engine.